* {
    margin: 0;
    padding: 0;
}
.box() {
    display: flex;
    display: -we;
}
li {
    list-style: none;
}
.px2rem(@name, @px) {
    @{name}: @px / 75 * 1rem;
}
.padding01(@top) {
    .px2rem(padding-top,@top);
}
.padding02(@bottom) {
    .px2rem(padding-bottom,@bottom);
}
.padding03(@left) {
    .px2rem(padding-left,@left);
}
.padding04(@right) {
    .px2rem(padding-right,@right);
}
footer {
    .px2rem(height,98);
    background: #000;
    width: 100%;
    position: fixed;
    bottom: 0;
    left: 0;
    ul {
        .px2rem(height,98);
        align-items: center; 
        justify-content: space-around;
        .box();
        li {
            .box();
            flex-flow: column;
            align-items: center;
            a {
                display: block;
                color: #FFFFFF;
                .px2rem(font-size,30);
            }
        }
        li:first-child {
            img {
                display: block;
                width: 90%;
            }
        }
    }
}